How easy is to blame Marotta when u can't understand basics of building football team and keeping it competitive for long period.
State in which is Juve demanded lot of risky steps to be done. Yes loosing Pirlo, Tevez and Vidal r risks for this year stability of the team. But keeping them for one more year is more dangerous for the future of Juve, because there is big probability of loosing 3-4 players next summer, Pogba, Morata, Evra, Barzagli just to name few.
Imagine the work and luck u need to replace 7-8 top players in one window. Here I recognize the top job done from Juves management, addressing the issue before it's become a problem. Doing the changes when you are on top so the transition be less painful, maybe this season Juve wouldn't be dominating the serieA or go SF in CL but will stay in the top teams.
Future looks bright.